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Business Combinations - Summary of Aggregate Consideration Paid by Company and Allocation of Purchase Price (Details) - USD ($) $ in Thousands |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 31, 2019 | Jun. 30, 2018 | Sep. 30, 2020 | Dec. 31, 2019
Business Acquisition [Line Items] |  |  |  |
Goodwill |  |  | $ 11,631 | $ 11,631
Oncimmune Limited |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash | $ 1,206 |  |  |
Total fair value of consideration transferred | 1,206 |  | $ 1,200 |
Deposit | 6 |  |  |
Inventory | 14 |  |  |
Property and equipment | 241 |  |  |
Purchase option | 121 |  |  |
Goodwill | 827 |  |  |
Accrued liabilities | (3) |  |  |
Total | $ 1,206 |  |  |
Integrated Diagnostics, Inc |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Cash |  | $ 8,000 |  |
Preferred stock issued - 10,694,904 shares |  | 7,987 |  |
Contingent consideration |  | 19,600 |  |
Total fair value of consideration transferred |  | 27,587 |  |
Prepaid expenses and other assets |  | 50 |  |
Inventory |  | 394 |  |
Property and equipment |  | 316 |  |
Technology |  | 16,900 |  |
Goodwill |  | 10,804 |  |
Liabilities |  | (877) |  |
Total |  | $ 27,587 |  |

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